Hi,
I posted this on your duplicate thread which you might like to try.
Have you sent the old one back yet?
If not then unpair the new one and then pair the box with the old remote.
https://community.talktalk.co.uk/t5/Articles/TalkTalk-Remote-Control-Guide/ta-p/2204370
Did that work?
If not try resetting the box to factory settings and hopefully it will then work.
Please remember to mark Solved Posts with Best Answer. Doing so helps other customers and saves TalkTalk's Support Team time by only looking at unsolved topics. Thanks, Steve (a fellow customer).
